The DRA0001 is a standard flat port (60 mm) intended for shorter macro lenses.

To make sure this port is suitable for your lens, measure the distance between the back of the camera and the tip of the lens you intend to use. If the distance is shorter than 158 mm (6,22 inch), the DRA0001 is suitable for you. If the distance is longer than the one mentioned above, please consider using the DiveRoss Tall flat port (DRA0002) or the port extension (DRA0004).